Silver halide emulsion, and light-sensitive material prepared by using the emulsion
AssigneeFuji Photo Film Co., Ltd.
InventorsYoichi Maruyama, Hiroyuki Mifune, Tetsuro Kojima
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Abstract
Disclosed herein is a silver halide emulsion which contains grains made of silver chloroiodobromide, silver iodobromide, or silver chlorobromide, each of said grains having at least one dislocation line and chemically sensitized with a tellurium sensitizer which has a pseudo-first order reaction rate constant k of 1.times.10.sup.-8 to 1.times.10.sup.0 min.sup.-1. Also disclosed herein is a silver halide photographic light-sensitive material which comprises at least one layer made of the silver halide emulsion, in which the grains occupying at least 50 wt % of said emulsion layer.
Claims14
A silver halide emulsion which contains grains made of silver chloroiodobromide, silver iodobromide, br silver chlorobromide, each of said grains having at least one dislocation line and chemically sensitized with at least one tellurium sensitizer represented by the following formula (IIA):
- ##STR58## where R.sub.13 and R.sub.15 each represent an aliphatic group or an aromatic group, said R.sub.13 and R.sub.15 combining with each other to form a ring together with N--C--N;
- and each of R.sub.14 and R.sub.16 represents an alkyl group or an aromatic group.
A silver halide emulsion which contains grains made of silver chloroiodobromide, silver iodobromide, or silver chlorobromide, each of said grains having at least one dislocation line and chemically sensitized with at least one tellurium sensitizer represented by the following formula (IIB):
- ##STR59## where R.sub.11 and R.sub.15 each represent an aliphatic group or an aromatic group or combine with each other to form a ring together with C--N;
- and R.sub.16 represents an alkyl group or an aromatic group.
A silver halide emulsion which contains grains made of silver chloroiodobromide, silver iodobromide, or silver chlorobromide, each of said grains having at least one dislocation line and chemically sensitized with at least one tellurium sensitizer represented by the following formula (I):
- ##STR60## where each of R.sub.1, R.sub.2 and R.sub.3 represents an aliphatic group, an aromatic group, a heterocyclic group, OR.sub.4, NR.sub.5 (R.sub.6), SR.sub.7, OSiR.sub.8 (R.sub.9)(R.sub.10), a halogen atom or a hydrogen atom;
- each of R.sub.4 and R.sub.7 represents an aliphatic group, an aromatic group, a heterocyclic group, a hydrogen atom or a cation;
- each of R.sub.5 and R.sub.6 represents an aliphatic group, an aromatic group, a heterocyclic group, or a hydrogen atom;
- and each of R.sub.8, R.sub.9 and R.sub.10 represents an aliphatic group;
- wherein R.sub.1 and R.sub.2, R.sub.2 and R.sub.3, or R.sub.1 and R.sub.3 may combine together to form a ring with P, and R.sub.5 and R.sub.6 may combine together to form a ring.
Dependencies are inferred from the claim text.